Secure transmission of an aircraft trajectory
First Claim
1. A computer-implemented method of communicating an aircraft trajectory using encryption and decryption of a description of the aircraft trajectory, comprising:
- on a sender'"'"'s side;
obtaining a ground-referenced description of the trajectory of the aircraft expressed in ground-referenced parameters;
obtaining a description of a fictional atmospheric model describing fictional atmospheric conditions along the trajectory;
using the description of the fictional atmospheric model to encrypt the ground-referenced description of the aircraft trajectory by converting the ground-referenced description of the aircraft trajectory into an air-referenced description of the aircraft trajectory expressed in air-referenced parameters with respect to the fictional atmospheric model; and
making available to the receiver the description of the fictional atmospheric conditions and air-referenced data from which the aircraft trajectory is unambiguously determined;
andon a receiver'"'"'s side;
receiving the description of the fictional atmospheric conditions and the air-referenced data from which the aircraft trajectory is unambiguously determined;
using the description of the fictional atmospheric conditions to decrypt air-referenced data from which the aircraft trajectory is unambiguously determined by converting the air-referenced data from which the aircraft trajectory is unambiguously determined back into the ground-referenced description of the aircraft trajectory expressed in ground-referenced parameters;
obtaining a description of a real atmospheric model describing real atmospheric conditions along the trajectory;
obtaining an aircraft performance model that describes how the aircraft performs; and
using the description of a real atmospheric model and an aircraft performance model to convert the ground-referenced description of the aircraft trajectory into a description of aircraft intent corresponding to a computer language description expressed using a formal language, wherein the description of the aircraft intent is a description of how the aircraft is to be flown expressed as instructions that provides a complete description of the aircraft'"'"'s behavior such that all degrees of freedom of motion are defined, and using the description of aircraft intent to fly the aircraft.
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Accused Products
Abstract
The present disclosure relates to the secure transmission of an aircraft trajectory that is to be flown or that has been flown. A ground-referenced description of the trajectory of the aircraft expressed in ground-referenced parameters is converted, using a description of an imaginary atmospheric model describing imaginary atmospheric conditions along the trajectory, into an air-referenced description of the aircraft trajectory expressed in air-referenced parameters. For decryption, knowledge of the imaginary atmospheric conditions allows the air-referenced description of the aircraft trajectory to be converted back into the ground-referenced description of the aircraft trajectory. Thus, the ground-referenced trajectory may be though of as the plain text, the imaginary atmospheric model as the cipher key and the air-referenced trajectory as the cipher text.
11 Citations
16 Claims
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1. A computer-implemented method of communicating an aircraft trajectory using encryption and decryption of a description of the aircraft trajectory, comprising:
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on a sender'"'"'s side; obtaining a ground-referenced description of the trajectory of the aircraft expressed in ground-referenced parameters; obtaining a description of a fictional atmospheric model describing fictional atmospheric conditions along the trajectory; using the description of the fictional atmospheric model to encrypt the ground-referenced description of the aircraft trajectory by converting the ground-referenced description of the aircraft trajectory into an air-referenced description of the aircraft trajectory expressed in air-referenced parameters with respect to the fictional atmospheric model; and making available to the receiver the description of the fictional atmospheric conditions and air-referenced data from which the aircraft trajectory is unambiguously determined; and on a receiver'"'"'s side; receiving the description of the fictional atmospheric conditions and the air-referenced data from which the aircraft trajectory is unambiguously determined; using the description of the fictional atmospheric conditions to decrypt air-referenced data from which the aircraft trajectory is unambiguously determined by converting the air-referenced data from which the aircraft trajectory is unambiguously determined back into the ground-referenced description of the aircraft trajectory expressed in ground-referenced parameters; obtaining a description of a real atmospheric model describing real atmospheric conditions along the trajectory; obtaining an aircraft performance model that describes how the aircraft performs; and using the description of a real atmospheric model and an aircraft performance model to convert the ground-referenced description of the aircraft trajectory into a description of aircraft intent corresponding to a computer language description expressed using a formal language, wherein the description of the aircraft intent is a description of how the aircraft is to be flown expressed as instructions that provides a complete description of the aircraft'"'"'s behavior such that all degrees of freedom of motion are defined, and using the description of aircraft intent to fly the aircraft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer infrastructure operable to communicate an aircraft trajectory using encryption and decryption of a description of the aircraft trajectory, comprising an encryption computer system and a decryption computer system, wherein
the encryption computer system comprises: -
memory operable to store a ground-referenced description of the trajectory of the aircraft expressed in ground-referenced parameters; memory operable to store a description of a fictional atmospheric model describing fictional atmospheric conditions along the trajectory; an encryption processor programmed to use the description of the fictional atmospheric model to encrypt the ground-referenced description of the aircraft trajectory by converting the ground-referenced description of the aircraft trajectory into an air-referenced description of the aircraft trajectory expressed in air-referenced parameters with respect to the fictional atmospheric model, and to make available to the decryption computer system the description of the fictional atmospheric conditions and air-referenced data from which the aircraft trajectory is unambiguously determined; and the decryption computer system comprises; a receiver operable to receive the description of the fictional atmospheric conditions and the air-referenced data from which the aircraft trajectory is unambiguously determined; memory operable to store the description of the fictional atmospheric conditions and the air-referenced data from which the aircraft trajectory is unambiguously determined; a decryption processor programmed to; use the description of the fictional atmospheric conditions to decrypt the air-referenced data from which the aircraft trajectory is unambiguously determined by converting the air-referenced data from which the aircraft trajectory is unambiguously determined back into the ground-referenced description of the aircraft trajectory expressed in ground-referenced parameters; obtain a description of a real atmospheric model describing real atmospheric conditions along the trajectory; obtain an aircraft performance model that describes how the aircraft performs; and using the description of a real atmospheric model and an aircraft performance model to convert the ground-referenced description of the aircraft trajectory into a description of aircraft intent corresponding to a computer language description expressed using a formal language, wherein the description of the aircraft intent is a description of how the aircraft is to be flown expressed as instructions that provides a complete description of the aircraft'"'"'s behavior such that all degrees of freedom of motion are defined, and using the description of aircraft intent to fly the aircraft. - View Dependent Claims (12, 13, 14, 15, 16)
the encryption processor is further programmed to use the air-referenced description of the aircraft trajectory, the description of the fictional atmospheric model and an aircraft performance model that describes how the aircraft performs to generate the air-referenced aircraft intent data.
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13. The computer infrastructure of claim 11, wherein the air-referenced data from which the aircraft trajectory is unambiguously determined is the air-referenced description of the aircraft trajectory expressed in air-referenced parameters with respect to the fictional atmospheric model.
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14. The computer infrastructure of claim 11, wherein the ground-referenced description of the aircraft trajectory and/or the air-referenced description of the aircraft trajectory comprises one or more computer data files representing a time-evolving series of either ground-referenced or air-referenced parameters respectively.
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15. The computer infrastructure of claim 14, wherein the ground-referenced parameters of the ground-referenced description of the aircraft trajectory comprise any of longitude, latitude, altitude, ground speed, bearing and direction.
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16. The computer infrastructure of claim 11, wherein the description of the fictional atmospheric conditions and the air-referenced data from which the aircraft trajectory is unambiguously determined is made available from the encryption computer system to the decryption computer system separately.
Specification